@charset "UTF-8";

/* ============================================================================
   Header Styles
   ============================================================================ */

/* --------------------------------------------------------------------------
   Base Header Styles(モバイルファースト)
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-maximum);
  background-color: transparent;
  transition:
    background-color var(--transition-base),
    backdrop-filter var(--transition-base),
    border-bottom var(--transition-base),
    box-shadow var(--transition-base);
}

/* ★ 修正: スクロール時 OR メニューオープン時にblack-frost-glassエフェクト */
.site-header--scrolled,
.site-header.is-nav-open {
  background: rgba(0,0,0,0.35);

  /* Chrome / Android */
  backdrop-filter: url(#glass-filter);
  -webkit-backdrop-filter: url(#glass-filter);

  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  min-height: 64px;
}



/* メニューオープン時のみ下のボーダーを非表示（ナビゲーションと繋がるため） */
.site-header.is-nav-open {
  border-bottom: none;
}

/* --------------------------------------------------------------------------
   Header Inner(高さ最適化)
   -------------------------------------------------------------------------- */

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
    height: 64px;
  padding: 0 var(--space-4);

  position: relative;
}

/* --------------------------------------------------------------------------
   Logo(サイズ最適化)
   -------------------------------------------------------------------------- */

.site-logo {
  margin: 0;
  z-index: calc(var(--z-fixed) + 2);
  position: relative;
 
}

.site-logo .logo {
  display: block;

  width: 65px;
  background-image: url('../../images/common/1759128347740.jpg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;

  text-indent: -9999px;
  overflow: hidden;
  white-space: nowrap;

  transition: opacity var(--transition-base);
}



.site-logo .logo:hover {
  opacity: 0.8;
}

/* --------------------------------------------------------------------------
   PC Navigation(1024px〜)
   -------------------------------------------------------------------------- */

@media (min-width: 1024px) {
  .site-header__inner {
    padding: 0 var(--space-6);
  }

  .site-logo .logo {
    width: 56px;
    height: 56px;
  }

  .global-nav {
    margin-left: auto;
  }

  .global-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .global-nav__list li {
    margin: 0;
  }

  .global-nav__list a {
    display: block;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    white-space: nowrap;
    padding: var(--space-2) 0;
    transition: color var(--transition-base);
  }

  .global-nav__list a.hover-gold:hover {
    color: var(--color-gold);
  }

  /* CTA */
  .nav-cta-item .nav-cta {
    font-weight: var(--font-weight-semibold);
  }
}

/* ===== Safari専用 上書き ===== */
@supports (-webkit-backdrop-filter: blur(1px)) {

  .site-header--scrolled,
  .site-header.is-nav-open {
    backdrop-filter: blur(20px) saturate(180%) brightness(1.06) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(1.06) !important;
  }

  .frost-glass,
  .frost-glass-header,
  .frost-glass-nav,
  .frost-glass-card,
  .frost-glass-panel,
  .frost-glass-button,
  .frost-glass-subtle,
  .frost-glass-strong,
  .frost-glass-dark {
    backdrop-filter: blur(18px) saturate(180%) brightness(1.06) !important;
    -webkit-backdrop-filter: blur(18px) saturate(180%) brightness(1.06) !important;
  }
 
}


[data-browser="firefox"] .site-header--scrolled,
[data-browser="firefox"] .site-header.is-nav-open {
  backdrop-filter: blur(20px) saturate(180%) brightness(1.06);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(1.06);
}